Feature Request: Set service_account option with env var

[Tom Goodsell]

I'd like the ability to set the service_account provider configuration with an ENV var, since we're able to set the corresponding access_token option with an ENV var as well.

Terraform Version

N/A

Affected Resource(s)

Provider Config

Terraform Configuration Files

provider "googleworkspace" {
  service_account = "[e-mail]"
}

Replaces the need to do the above.